Using classical Friedman criteria, protracted active phase dilatation in a MULTIPAROUS woman is defined as a rate of cervical dilatation slower than:
- A 0.5 cm per hour
- B 1.0 cm per hour
- C 1.2 cm per hour
- D 1.5 cm per hour ✓
Explanation
Friedman classified protraction disorders of the active phase as dilatation slower than 1.2 cm per hour in nulliparas and slower than 1.5 cm per hour in multiparas. The 1.2 cm per hour cutoff applies only to primigravidas, so choosing it here reflects applying the nulliparous criterion to the wrong parity. Protracted descent uses separate thresholds of 1 cm per hour in nulliparas and 2 cm per hour in multiparas.
Reference: Williams Obstetrics, 26th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.